31.12% is the change from 633 to 830
Calculation steps:
[( 830 - 633 ) ÷ 633] x 100 = 31.12%
Formula
Percentage change = [(830 - 633) / 633] x 100
Subtract the new number by the original number
830 - 633 = 197
197 ÷ 633 = 0.31121642969984203
0.31121642969984203 x 100 = 31.12%